Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 336 · 40 questions

How to solve it (P × R × T ÷ 100): Simple interest = P × R × T ÷ 100 (P = principal, R = rate % per year, T = years). Amount = principal + interest. Rate = SI × 100 ÷ (P × T); time = SI × 100 ÷ (P × R).

1. 1.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
2. 2.In how many years will ₹6500 earn ₹910 simple interest at 7% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
3. 3.The simple interest on ₹4000 for 2 years is ₹960. What is the rate per year? (a) 13% (b) 11% (c) 12% (d) 24%
4. 4.What is the simple interest on ₹4000 at 10% per year for 5 years? (a) ₹6000 (b) ₹2400 (c) ₹400 (d) ₹2000
5. 5.₹4500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹5040 (b) ₹6120 (c) ₹6660 (d) ₹1620
6. 6.In how many years will ₹6500 earn ₹520 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
7. 7.In how many years will ₹8000 earn ₹3840 simple interest at 12% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
8. 8.What is the simple interest on ₹9000 at 3% per year for 2 years? (a) ₹810 (b) ₹9540 (c) ₹540 (d) ₹270
9. 9.The simple interest on ₹3000 for 3 years is ₹630. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 21%
10. 10.₹3500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹3675 (b) ₹525 (c) ₹4025 (d) ₹4200
11. 11.In how many years will ₹4000 earn ₹720 simple interest at 9% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
12. 12.What is the simple interest on ₹4500 at 9% per year for 2 years? (a) ₹405 (b) ₹1215 (c) ₹5310 (d) ₹810
13. 13.The simple interest on ₹6500 for 2 years is ₹1170. What is the rate per year? (a) 18% (b) 9% (c) 8% (d) 10%
14. 14.What is the simple interest on ₹8000 at 5% per year for 5 years? (a) ₹400 (b) ₹10000 (c) ₹2400 (d) ₹2000
15. 15.₹1500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1800 (b) ₹1725 (c) ₹225 (d) ₹1575
16. 16.In how many years will ₹9000 earn ₹1080 simple interest at 4% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
17. 17.₹8500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹12070 (b) ₹9095 (c) ₹2975 (d) ₹11475
18. 18.What is the simple interest on ₹3000 at 2% per year for 2 years? (a) ₹120 (b) ₹180 (c) ₹60 (d) ₹3120
19. 19.What is the simple interest on ₹7000 at 2% per year for 3 years? (a) ₹7420 (b) ₹420 (c) ₹140 (d) ₹560
20. 20.The simple interest on ₹2000 for 4 years is ₹960. What is the rate per year? (a) 48% (b) 12% (c) 11% (d) 13%
21. 21.What is the simple interest on ₹8500 at 2% per year for 5 years? (a) ₹170 (b) ₹1020 (c) ₹850 (d) ₹9350
22. 22.What is the simple interest on ₹2000 at 4% per year for 3 years? (a) ₹320 (b) ₹2240 (c) ₹240 (d) ₹80
23. 23.The simple interest on ₹8500 for 2 years is ₹510. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 6%
24. 24.In how many years will ₹7500 earn ₹1500 simple interest at 10% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
25. 25.What is the simple interest on ₹3500 at 2% per year for 4 years? (a) ₹350 (b) ₹70 (c) ₹3780 (d) ₹280
26. 26.What is the simple interest on ₹6000 at 7% per year for 4 years? (a) ₹7680 (b) ₹420 (c) ₹2100 (d) ₹1680
27. 27.What is the simple interest on ₹2000 at 10% per year for 4 years? (a) ₹1000 (b) ₹800 (c) ₹200 (d) ₹2800
28. 28.In how many years will ₹10000 earn ₹900 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
29. 29.What is the simple interest on ₹4500 at 3% per year for 3 years? (a) ₹540 (b) ₹4905 (c) ₹405 (d) ₹135
30. 30.The simple interest on ₹4000 for 3 years is ₹1320. What is the rate per year? (a) 12% (b) 10% (c) 33% (d) 11%
31. 31.₹4000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹4800 (b) ₹4160 (c) ₹4640 (d) ₹640
32. 32.The simple interest on ₹6500 for 2 years is ₹650. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 10%
33. 33.₹8500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹10030 (b) ₹8755 (c) ₹9775 (d) ₹1275
34. 34.In how many years will ₹2500 earn ₹400 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
35. 35.What is the simple interest on ₹6500 at 4% per year for 5 years? (a) ₹7800 (b) ₹1560 (c) ₹1300 (d) ₹260
36. 36.In how many years will ₹6000 earn ₹720 simple interest at 3% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
37. 37.₹8000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1680 (b) ₹8560 (c) ₹9680 (d) ₹10240
38. 38.In how many years will ₹4000 earn ₹1000 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
39. 39.In how many years will ₹2500 earn ₹600 simple interest at 12% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
40. 40.What is the simple interest on ₹8000 at 10% per year for 3 years? (a) ₹800 (b) ₹3200 (c) ₹10400 (d) ₹2400

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